*{
    padding: 0;
    margin: 0;
}
ul li{
    list-style: none;
}
.banner{
    width:100%;
    height: 431px;
    background:url(../images/ban.png) no-repeat;
}
.banner_cen{
    width:397px;
    height:431px;
    margin:0 auto;
    padding-top:10px;
    position: relative;
}
.banner_one{
    width:397px;
    height:431px;
}
.ban_one{
    position:absolute;
    left: 175px;
    bottom: 308px;
    font-size: 25px;
    color: #ffffff;
}
.ban_two{
    position:absolute;
    left: 53px;
    bottom: 236px;
    font-size: 25px;
    color: #ffffff;
}
.ban_three{
    position:absolute;
    left: 174px;
    bottom: 168px;
    font-size: 25px;
    color: #ffffff;   
}
.ban_four{
    position:absolute;
    left: 294px;
    bottom: 237px;
    font-size: 25px;
    color: #ffffff;    
}
.ban_five{
    position:absolute;
    left: 54px;
    bottom: 97px;
    font-size: 25px;
    color: #ffffff;    
}
.ban_six{
    position:absolute;
    left: 163px;
    bottom: 28px;
    font-size: 25px;
    color: #ffffff;  
}
.ban_six{
    position:absolute;
    left: 163px;
    bottom: 28px;
    font-size: 25px;
    color: #ffffff;  
}
.ban_seven{
    position:absolute;
    left: 297px;
    bottom: 98px;
    font-size: 25px;
    color: #ffffff;     
}